Publish different transpilation targets to different npm packages

[jeffbcross]

In order to have nicer import paths, without dist and module/language directories, we should publish the different outputs (CJS, ES6, TS) as different npm packages: rxjs for CJS, rxjs-es6 for ES6, rxjs-ts for TypeScript. It would also be nice to drop the @reactivex scoping in the process, since that causes issues for users with older npm versions.

Before:

import {map} from '@reactivex/rxjs/dist/cjs/operators/map';

After (though #750 will move the operators even further up the export tree)

import {map} from 'rxjs/operators/map';

[benlesh]

This is a great idea. It would solve some of the other issues we've seen with people on older versions of npm as well.

[benlesh]

So I think rxjs, rxjs-es6 and rxjs-ts would do, where rxjs is the CJS version of the library.

[jeffbcross]

Awesome, unless someone has already started work on this (@robwormald), I'll get to work once I wrap up another issue I'm working on in angular.

[robwormald]

i can do this if you like @jeffbcross

[robwormald]

i dont think we need the TS distro either - just distribute the .d.ts files alongside the ES6 and CJS output (like we do already)

[benlesh]

Perhaps it should be rxjs-es ... because some day it will be es7 or es2025 or whatever. But hopefully by then the module wars will be over.

[benlesh]

... then again that could imply es3 haha. I give up. What makes sense?

[robwormald]

SystemJS et al refer to it as esm - https://github.com/systemjs/systemjs/blob/master/docs/module-formats.md

[trxcllnt]

What about rxjs-node, rxjs and rxjs-ts for CJS, ES6+, and TS respectively?

[benlesh]

@trxcllnt: I discussed this on Slack with @jeffbcross, and he brought up a good point on the rxjs-node front, which is that CJS isn't really node specific. Many developers use CJS for their client-side bundling processes.

[jeffbcross]

I also like the idea of CJS being the default, non-suffixed (rxjs) distribution, since it is in the current native format of node modules (CJS).

[jeffbcross]

Closed by @robwormald in 185abdf

(Issues have been opened to fix bugs introduced in the new process)